Home / 39,198.36-54,092.20-21,292.96

Finding the Fourth Proportional to 39,198.36, 54,092.20 and 21,292.96

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Solution

The fourth proportional to 39,198.36, 54,092.20 and 21,292.96 is: 29,383.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,198.36 : 54,092.20 = 21,292.96 : x
  2. Step 2: Convert to fraction form
    39,198.36/54,092.20 = 21,292.96/x
  3. Step 3: Cross multiply
    39,198.36x = 54,092.20 × 21,292.96
  4. Step 4: Simplify right side
    39,198.36x = 1,151,783,050.91
  5. Step 5: Solve for x
    x = 1,151,783,050.91/39,198.36
  6. Step 6: Final answer
    x = 29,383.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.